Compound rail.



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IIIIIIIIIIIIIIIIII PT. 11, 1912.

Patented se t. 16,1913.

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EDWARD r. CALDWELL, or WATERLOO, IOWA.

COMPQUND RAIL.

To all whom it may concern:

Be it known that I, EDWARD P. CALDWELL, a citizen of the United States, residing at Waterloo, in the county of Blackhawk and State of Iowa, have invented new and useful Improvements in Compound Rails, of which the following is a specification.

This invention relates to certain new and useful improvements in compound rails, and the object thereof is to provide an improved rail of this type in which the base is formed of three members, one of which is of a softer metal than the other two in order to'provide a firm anchorage for the securing rivets, and further to provide novel means for preventing the rail head from becoming separated from the base structure even should the rail head be broken.

Further and other objects will be apparent and set forth hereinafter.

In the drawings: Figure l is a fragmentary transverse sectional view; and Fig. 2 is a fragmentary side elevation.

The wooden ties 1 are embedded in a mass of concrete 2 which, as is well known, pre serves the timber for periods varying from 50 to 100 years.

The base structure is formed of a central member or bar 3 made of iron preferably somewhat soft, the lower edge of the bar being sharpened or pointed at fl: to bite into the ties to prevent creeping of the rails. The other two members of the base structure are formed of soft steel right angle bars 5 which have their vertical portions secured to opposite sides of the bar 3 by rivets 6, which latter pass through the iron bar 3 and by reason of the soft nature of said bar obtain an anchorage which results in firm holding of the rivets. The upper ends of the vertical portions of the angle bars above the bar 3, are inclined inwardly toward each other as depicted in Fig. 1. The rail head 7 has a depending web portion 8 which is of wedge-shape, the greatest thickness of the web being at its base or free edge so that said web conformably fits in the wedgeshaped space between the vertical portions of the angle bars 5. Bolts 9 pass through the vertical portions of the angle bars 5 and the web portion 8 to firmly secure the parts together. A copper strip 10 seats on central bar 3 and in turn forms a seat for the web portion 8, the copper strip being em ployed for the purpose of forming a cushion on which the bottom face of the web portion Specification of Letters Patent. Application filed September 11, 1912.

Patented Sept. 16, 1913. Serial No. 719,762.

8 seats. The mass of concrete extends above the-rivets 6 so as; to completely inclo-se the 7 same. V

Should the rail head be broken in any place, it will be evident that the same will be held against upward movement by reason of its wedge shaped web being engagedby the inclined portions of the angle bars 5, and in addition by having a broad base for the web the same is given fl-fillll bearing and sea-t.

From the above it will be further evident that the base structure constitutes a permanent part of the bed, so that in event of removal it is merely necessary to remove bolts 9, and spread the inclined portions of the angle bars 5 apart, which will permit of removal of the web 8.

What is claimed is 1. In a compound rail, a central iron bar having a pointed lower edge to bite into the rail tie, a pair of right-angle steel bars having the lower edges of their vertical portions disposed on opposite sides of said central bar, rivets passed through said vertical portions of the angle bars and through said central bar, the upper edges of said vertical portions of the angle bars being inclined upwardly toward one another, a cushion seating on the top face 'of said central bar, a rail head having a wedge-shaped web portion the free edge of which seats on said cushion and the sides of which are conformably engaged by said inclined portions of the angle bars, bolts passed through said inclined portions and through said web portion, and a mass of concrete which incloses the tie, the bases of the angle bars, the bases of the vertical portions of the angle bars and said rivets.

2. In a compound rail, a base formed of right-angle bars held in spaced relation by a central bar which projects below the horizontal portions of the right-angle bars, and secured thereto by means of rivets, a head having a depending portion removably secured between the vertical portions of the right-angle bars and resting on the top face of said central bar, the right-angle bars and the central bar being embedded in concrete to a depth approximately equal to the top face of the central bar.

3. In a compound rail, in combination with a tie, a base comprising two angle-bars, a central bar permanently secured therebetween and having a pointed lower extremity 4. A compound rail comprising a plural ity of right angled base members spaced apart by andrigidly secured to a central bar the lower extremity of which extends below the lowest face of each of the right angled base members, a cushion carried by the top face of the central bar, and a rail head having a depending base member secured between the two right angle base portions and having its bottom iace engaging said cushion.

5. A compound rail comprising a plurality of rightangle base members having their --witnesses.

vertical walls inclined, a central bar spacing said right angle base members apart, and projecting below the bottom faces of the right angle base members, means for securing the central bar and said base members together, a'cushion resting on the face of the central bar, a rail head having'a wedge shaped depending web portion resting on said cushion, and means for securing said wedge shaped web portion between the inclined vertical walls of the right'angle base members.

In testimony whereof I have hereunto set my hand in presence of two subscribing EDWARD P. Y CALDWELL.

Witnesses: Y

F. W. 'EDVVARDS; W. M. LAW.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. r V 

